Date: Wed, 13 May 2009 15:04:12 -0700 From: Nate Lawson <nate@root.org> To: Ian Smith <smithi@nimnet.asn.au> Cc: Alexander Motin <mav@freebsd.org>, freebsd-mobile@freebsd.org, Gary Dunn <knowtree@aloha.com>, FreeBSD-Current <freebsd-current@freebsd.org>, FreeBSD acpi <freebsd-acpi@freebsd.org> Subject: Re: Fighting for the power. Message-ID: <4A0B43DC.9060708@root.org> In-Reply-To: <20090512182420.K46325@sola.nimnet.asn.au> References: <49FE1826.4060000@FreeBSD.org> <4A07BC4D.7080604@freebsd.org> <4A081868.6010906@FreeBSD.org> <3a142e750905111308o62a11c8em5465ea9aa1cfaebc@mail.gmail.com> <4A08B10E.4040702@FreeBSD.org> <1242110455.2664.9.camel@slate01> <20090512182420.K46325@sola.nimnet.asn.au>
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Ian Smith wrote:
> On Mon, 11 May 2009, Gary Dunn wrote:
> > On Tue, 2009-05-12 at 02:13 +0300, Alexander Motin wrote:
> > ...
> > >
> > > What's about general effect, the main idea here is the same as in audio
> > > processing: result mostly depends on quality of the worst component.
> > > Your system may just have some other consumers which I don't have. For
> > > example, desktop CPU instead of mobile, desktop chipset instead of
> > > mobile, powerful external video instead of (or even in addition to)
> > > built-in, and so on.
> > >
> >
> > Interesting point. Is there a power consumption benchmark for evaluating
> > hardware for use with FreeBSD?
>
> make buildworld, running on battery? :-)
>
> More seriously: thanks to Nate's earlier niggling, I've been thinking
> towards a richer set of power profiles than our {performance,economy}
> dichotomy for a while, both in terms of various different work/play and
> AC/battery scenarious, and re specific settings that may be more or less
> optimal for particular hardware, that could be distributed or advised as
> more of a basic working set rather than as a series of 'try this' hints.
>
FYI, Cyrille Szymanski has implemented a patch to add this kind of power
profile support to powerd(8). I'd like to see it finished and committed.
--
Nate
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